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Finding the Fourth Proportional to 53,993,047.20, 80,996,674.80 and 19,938,314.40

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Solution

The fourth proportional to 53,993,047.20, 80,996,674.80 and 19,938,314.40 is: 29,910,094.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,993,047.20 : 80,996,674.80 = 19,938,314.40 : x
  2. Step 2: Convert to fraction form
    53,993,047.20/80,996,674.80 = 19,938,314.40/x
  3. Step 3: Cross multiply
    53,993,047.20x = 80,996,674.80 × 19,938,314.40
  4. Step 4: Simplify right side
    53,993,047.20x = 1,614,937,167,516,957
  5. Step 5: Solve for x
    x = 1,614,937,167,516,957/53,993,047.20
  6. Step 6: Final answer
    x = 29,910,094.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.